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Tytuł:
Quality features of metal matrix composite castings
Cechy jakości odlewów z metalowych materiałów kompozytowych
Autorzy:
Gawdzińska, K.
Powiązania:
https://bibliotekanauki.pl/articles/353101.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
quality features
casting
metal matrix composites
cechy jakości
odlewy
metalowe odlewy kompozytowe
Opis:
In this paper it is stated, that a set of quality features of metal matrix composite castings differs from the same set for castings of classic materials, although some features are common for both of these material groups. These features (pertaining to a set of quality characteristics of composite castings) have been named as specific, they have not been determined yet and a description of material quality should be performed (according to the qualitology) on a principle of description of quality characteristics of this product. Therefore, this set of features has been determined. It was proposed to add the following characteristics to the set of specific features of composite castings quality: matrix material, reinforcement material, binding between components and porosity of the composite casting. In this set a sub-set of quality characteristics of composite castings was also determined.
Stwierdzono, że zbiór cech jakości metalowych odlewów kompozytowych różni się od zbioru cech jakości odlewów z materiałów klasycznych, choć niektóre cechy są zbieżne dla obu tych grup materiałowych. Cechy te (należące do zbioru cech jakości odlewów kompozytowych) nazwano specyficznymi, nie były one dotychczas określone, a opis jakości materiałów powinien odbywać się (w myśl kwalitologii) na zasadzie opisu cech jakości tego wyrobu. Określono zatem ten zbiór cech. Zaproponowano, aby do zbioru specyficznych cech jakości odlewów kompozytowych zaliczyć: materiał osnowy, materiał zbrojenia, połączenie pomiędzy komponentami i porowatość odlewu kompozytowego. W zbiorze tym określono również podzbiór cech jakości odlewów kompozytowych.
Źródło:
Archives of Metallurgy and Materials; 2013, 58, 3; 659-662
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigate the Possibility of Tekcast Methods Used for Casting Polymeric Resin Materials
Autorzy:
Mäsiar, H.
Repka, L.
Lipták, P.
Híreš, O.
Powiązania:
https://bibliotekanauki.pl/articles/382667.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Tekcast method
silicone mold
polymeric resins
casts
metoda Tekcast
żywica polimerowa
odlewy
Opis:
Contribution gives an overview of knowledge about the method of centrifugal casting with orientate on Tekcast system. Company Tekcast Industries has developed a device for centrifugal casting, extending the area of production of castings or prototyping of metal or plastic. Materials suitable for the centrifugal casting with flexible operating parameters may include non-ferrous metal alloy based on zinc or aluminum or non-metallic materials such as polyester resins, polyurethane resins, epoxy resins, waxes and the like. The casting process is particularly suitable for a wide range of commercial castings and decorative objects.
Źródło:
Archives of Foundry Engineering; 2014, 14, 2; 116-122
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Application of VoxelJet Technology to the Rapid Prototyping Gear Cast
Autorzy:
Budzik, G.
Markowski, T.
Kozik, B.
Przeszłowski, Ł.
Rzucidło, A.
Markowska, O.
Zaborniak, M.
Dziubek, T.
Bernaczek, J.
Turek, P.
Traciak, J.
Cader, M.
Tutak, M.
Powiązania:
https://bibliotekanauki.pl/articles/380024.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
rapid prototyping method
VoxelJet technology
casting
rapid tooling
szybkie prototypowanie
technologia VoxelJet
odlewy
Opis:
The article presents the scope of application of incremental Rapid Prototyping/Rapid Tooling (RP/RT) – VoxelJet methods to the process of manufacturing casting moulds and casts of gear. The additive Rapid Prototyping methods (SL, FDM, 3DP, JS) are predominantly used for the production of models and model sets for casting moulds. The Rapid Tooling methods, such as: VoxelJet, ZCast-3DP and ProMetalRCT, enable the fabrication of casting moulds in the incremental process. The application of the RP/RT methods in cast production makes it possible to speed up the prototype preparation process. This is particularly vital with elements of complex shapes. The time required for the manufacture of the model, the mould and the cast proper may vary from a few to several dozen hours.
Źródło:
Archives of Foundry Engineering; 2014, 14, 1 spec.; 87-90
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of Mechanism of Pore Formation in Directionally Solidified A356 Alloy
Autorzy:
Uludag, M.
Dispinar, D.
Powiązania:
https://bibliotekanauki.pl/articles/380892.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
krzepnięcie kierunkowe
porowatość
ziarna
odlewy
directional solidification
porosity
bifilm index
grain refinement
casting
Opis:
It is well-known that the better the control of the liquid aluminium allows obtaining of better properties. One of the most important defects that is held responsible for lower properties has been the presence of porosity. Porosity has always been associated with the amount of dissolved hydrogen in the liquid. However, it was shown that hydrogen was not the major source but only a contributor the porosity. The most important defect that causes porosity is the presence of bifilms. These defects are surface entrained mainly due to turbulence and uncontrolled melt transfer. In this work, a cylindrical mould was designed (Ø30 x 300 mm) both from sand and die. Moulds were produced both from sand and die. Water cooled copper chill was placed at the bottom of the mould in order to generate a directional solidification. After the melt was prepared, prior to casting of the DC cast samples, reduced pressure test sample was taken to measure the melt quality (i.e. bifilm index). The cast parts were then sectioned into regions and longitudinal and transverse areas were investigated metallographically. Pore size, shape and distribution was measured by image analysis. The formation of porosity was evaluated by means of bifilm content, size and distribution in A356 alloy.
Źródło:
Archives of Foundry Engineering; 2017, 17, 1; 157-162
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Karty kontrolne narzędziem oceny zmienności procesu wytwarzania odlewów
Control Charts as the Tool for Assessment of the Variability of the Castings Manufacturing Process
Autorzy:
Brzeziński, M.
Smyksy, K.
Powiązania:
https://bibliotekanauki.pl/articles/381184.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
odlewy
zarządzanie jakością
system MSA
karty kontrolne
castings
quality management
MSA system
checklists
Opis:
Szybko rozwijająca się gospodarka oraz ciągłe wzrastające wymagania klientów wymuszają na odlewniach nieustanną rywalizację o egzystencję i dalszy rozwój. Osiągnięcie tych dwóch podstawowych rzeczy, jest sprawą niezmiernie trudną. Zarząd odlewni staje przed skomplikowanymi decyzjami związanymi z maksymalizacją efektywności produkcji. Do takich decyzji należy m.in. wdrażanie nowych systemów czy też instrumentów zarządzania jakością. W artykule poddano analizie i ocenie system kontroli jakości odlewów oparty na kartach kontrolnych do pomiarów liczbowych [...].
Rapidly growing economy and the continuous increasing demands of customers force on foundry companies the ceaseless rivalry for existence and further development. Achieving these two basic aims is extremely difficult matter. Management of foundry is faced with complicated decisions connected with maximization of the production effectiveness. Such decisions include, among others, implementation of new systems or instruments of the quality management. The article analyzes and evaluates the quality control system of casting based on control charts of measurements [...]
Źródło:
Archives of Foundry Engineering; 2014, 14, 2 spec.; 7-10
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Composite zones produced in iron castings by in-situ synthesis of TiC carbides
Strefy kompozytowe otrzymywane w odlewach z żeliwa w wyniku syntezy in situ węglików TiC
Autorzy:
Olejnik, E.
Górny, M.
Tokarski, T.
Grabowska, B.
Kmita, A.
Sikora, G.
Powiązania:
https://bibliotekanauki.pl/articles/356291.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
MMCs
in situ
composites zone
TiC
castings
synteza in situ
strefy kompozytowe
odlewy
Opis:
The study discusses a method of producing composite zones at the edge of castings made of ferritic-pearlitic ductile iron. Composite zones were produced in castings made of ferritic-pearlitic ductile iron at the casting edge. The reinforcing phase for the composite zone was TiC carbide, obtained by in-situ synthesis of substrates introduced into the mould in the form of compacts. The composition of the substrates of the reaction of the TiC synthesis was next enriched with an Fe filler added in an amount of 10 and 50 wt. % to investigate the possibility of changing the hardness of the composite zone. The addition of filler changed the surface fraction and the average size of TiC precipitates. In the case of the 50 wt. % addition, a tenfold reduction in the dimensions of the carbides was obtained. This increased their surface fraction relative to the compact composition containing only 10 wt. % of the filler. Changes in mechanical properties were analysed within the zone area by the measurement of hardness HV. The study showed a gradual decrease of the zone hardness in function of the amount of the filler added. This trend was also true as regards the composite zone in castings, where a significant refinement and increased surface content of the TiC precipitates was observed.
W pracy omówiono metodę wytwarzania stref kompozytowych w odlewach z ferrytyczno-perlitycznego żeliwa sferoidalnego. Faza wzmacniająca strefy kompozytowej był węglik tytanu (TiC), uzyskany w wyniku syntezy in situ substratów wprowadzonych do formy w postaci wyprasek. Do kompozycji substratów reakcji syntezy TiC wprowadzono wypełniacz, proszek Fe w ilości 10 i 50 %mas. w celu zbadania możliwości zmiany twardości strefy kompozytowej. Dodatek wypełniacza spowodował zmiane udziału powierzchniowego oraz średniej wielkości TiC. W przypadku 50 %mas. dodatku wypełniacza otrzymano dziesięciokrotne zmniejszenie wymiarów węglików. Analizowano zmiany mechaniczne w obrębie strefy, badając jej twardość HV. Badana wykazały stopniowy spadek twardości strefy wraz z ilością dodawanego wypełniacza. Tendencja ta dotyczyła również strefy kompozytowej odlewu, w którym stwierdzono znaczne rozdrobnienie wydzieleń TiC i wzrost ich udziału powierzchniowego.
Źródło:
Archives of Metallurgy and Materials; 2013, 58, 2; 465-471
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermal Conductivity of the Green-Sand Mould Poured with Copper
Autorzy:
Krajewski, P. K.
Piwowarski, G.
Suchy, J. S.
Powiązania:
https://bibliotekanauki.pl/articles/381756.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
castings
green sand mould
thermal conductivity
solidification
odlewy
masa formierska
przewodność cieplna
krzepnięcie
Opis:
The paper presents results of measuring thermal conductivity of green-sand mould material and time of pure-copper plate castings solidification evaluated from cooling curves. During the experiments pure Cu (99,8 %) plate was cast into the green-sand moulds. Basing on the measurements it was stated that thermal conductivity of the moulding sand has complex temperature variability, especially during the water vaporization and the obtained dependence should be used in the numerical calculations to improve their accuracy.
Źródło:
Archives of Foundry Engineering; 2014, 14, 4 spec.; 67-70
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact Strength of Composite Materials Based on EN AC-44200 Matrix Reinforced with Al2O3 Particles
Autorzy:
Kurzawa, A.
Kaczmar, J. W.
Powiązania:
https://bibliotekanauki.pl/articles/382466.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
composites
squeeze casting
aluminum
tensile strength
impact strength
kompozyty
odlewy
aluminium
wytrzymałość na rozciąganie
Opis:
The paper presents the results of research of impact strength of aluminum alloy EN AC-44200 based composite materials reinforced with alumina particles. The research was carried out applying the materials produced by the pressure infiltration method of ceramic preforms made of Al2O3 particles of 3-6mum with the liquid EN AC-44200 Al alloy. The research was aimed at determining the composite resistance to dynamic loads, taking into account the volume of reinforcing particles (from 10 to 40% by volume) at an ambient of 23°C and at elevated temperatures to a maximum of 300°C. The results of this study were referred to the unreinforced matrix EN AC-44200 and to its hardness and tensile strength. Based on microscopic studies, an analysis and description of crack mechanics of the tested materials were performed. Structural analysis of a fracture surface, material structures under the crack surfaces of the matrix and cracking of the reinforcing particles were performed.
Źródło:
Archives of Foundry Engineering; 2017, 17, 3; 73-78
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermal Properties of Foundry Mould Made of Used Green Sand
Autorzy:
Krajewski, P. K.
Piwowarski, G.
Buraś, J.
Powiązania:
https://bibliotekanauki.pl/articles/379526.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
castings
solidification
used green sand
thermo-physical properties
odlewy
krzepnięcie
masy formierskie
właściwości cieplno-fizyczne
Opis:
The paper presents results of measuring heat diffusivity and thermal conductivity coefficients of used green foundry sand in temperature range ambient – 600°C. During the experiments a technical purity Cu plate was cast into the green-sand moulds. Basing on measurements relationships of the measured properties were evaluated. It was confirmed that the obtained relationships are complex and that water vaporization strongly influences thermal conductivity of the moulding sand in the first period of the mould heating by the poured and solidified casting.
Źródło:
Archives of Foundry Engineering; 2016, 16, 1; 29-34
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Aplication of Vibro – Abrasive Machining for Smoothing of Castings
Autorzy:
Bańkowski, D.
Spadło, S.
Powiązania:
https://bibliotekanauki.pl/articles/381382.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
odlewy
obróbka wibrościerna
wykończenie
jakość powierzchni
castings
vibro-abrasive machining
finishing
burrs removal
surface quality
Opis:
The paper presents the production problems related to casting using precision casting methods. The essential adverse effect of the casting process is the presence of burrs understood as oversize material necessary to remove the next finishing operations. In addition, the surfaces of the cast often characterized by a porous structure. One of the methods to improve the smoothness of the area proposed by the authors is the use of vibro-abrasive finishing. This type of treatment is widely used in the treatment of finishing small objects as well as complex shapes. Objects in the form of casting in the first step was treated with aggressive deburring polyester matrix abrasive media. The second stage was polishing, with using smoothing porcelain media. The study evaluated the effect of vibro-abrasive machining typical cast on the basic parameters of the geometric structure of the surface. Observations using optical microscope Nicon Eclipse MA 200 compared changes in surface microstructure and the effect of deburring. Clearly we can say that vibro-abrasive machining an effective way of reducing the size of burrs, smoothing and lightening the surface of objects made by casting.
Źródło:
Archives of Foundry Engineering; 2017, 17, 1; 169-173
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nanostructure of the soluble sodium silicate in the aspect of basic mechanical characteristic of the moulding sands
Autorzy:
Baliński, A.
Powiązania:
https://bibliotekanauki.pl/articles/410728.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:
nanostruktury
koloidy
piasek formierski
odlewy
ochrona środowiska
nanostructure
colloid
soluble sodium silicate
moulding sand
casting
environmental protection
Opis:
The paper describes the consequential advantages of the use of inorganic binders, particularly soluble sodium silicate, in the aspect of the environmental protection. Nanostructure of the soluble sodium silicate as a silicate colloid is described. Research of the structure of the soluble sodium silicate is executed with the use of the PCS method (Photon Correlation Spectroscopy). Characteristic parameters of the nanostructure of the soluble sodium silicate and the method of the estimation of the quantitative structure of the colloid are introduced. It has been proved that the nanostructure of the soluble sodium silicate has an essential influence on its proprieties as binders of the moulding sands. Mechanical characteristic of the moulding sands executed with this binder are dependent on the kind of the nanostructural characteristic of the soluble sodium silicate.
Źródło:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2012, 1, 1; 3-8
2084-5715
Pojawia się w:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Heat exchange in the system mould - riser - ambient. Part II: Surface heat emission from open riser to ambient
Wymiana ciepła w układzie forma - nadlew - otoczenie. Część II: Współczynnik emisji ciepła z otwartego nadlewu do otoczenia
Autorzy:
Krajewski, P. K.
Gradowski, A.
Krajewski, W. K.
Powiązania:
https://bibliotekanauki.pl/articles/352192.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
castings
risers
surface heat emission
heat balance
solidification modelling
odlewy
nadlew
emisja ciepła
bilans cieplny
modelowanie krzepnięcia
Opis:
The subject of the paper is heat exchange in the system casting - riser - ambient. The examinations were focused on evaluating temperature dependence of the coefficient of heat exchange from open (not shielded) top surface of riser to ambient. The examinations were carried out on the open surface of cast steel riser, of temperatures 1000-1500°C. On the basis of the performed examinations it was stated that heat emission coefficient changes its mean values by about 50% during feeding process of the mild steel casting, i.e. from about 0.28 in liquid state to about 0.42 at temperatures close to solidus. This wide range of surface heat emissivity changes should be taken into account when boundary conditions are formulated in elaborated models of solidification and in designing risering systems.
Przedmiotem artykułu jest wymiana ciepła w systemie odlew - nadlew - otoczenie. Celem badań było wyznaczenie temperaturowej zależności współczynnika wymiany ciepła z odkrytej, nieizolowanej powierzchni nadlewu do otoczenia. Badania wykonano dla odlewu staliwnego z odkrytym nadlewem, dla zakresu temperatury powierzchni nadlewu 1000-1500°C. Na podstawie wykonanych badań stwierdzono, iż współczynnik emisji ciepła z nieizolowanej powierzchni nadlewu do otoczenia zmienia swą wartość w badanym zakresie temperatury o około 50%, tj. od około 0.26 - 0.30 dla metalu w stanie ciekłym do około 0.42 - 0.46 dla metalu w stanie stałym, w pobliżu temperatury solidus. Powyższy szeroki zakres zmian emisyjności powinien być uwzględniany w budowanym modelach symulacji procesu krzepnięcia i projektowania systemów zasilania krzepnących odlewów.
Źródło:
Archives of Metallurgy and Materials; 2013, 58, 4; 1149-1153
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Precipitation of Sigma and Chi Phases in Cast Standard Duplex Stainless Steel
Autorzy:
Myška, Martin
Bořil, Petr
Krutiš, Vladimír
Kaňa, Václav
Zádĕra, Antonin
Powiązania:
https://bibliotekanauki.pl/articles/27314154.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
cast duplex steel
intermetallics
precipitation
Sigma phase
Chi phase
odlewy
stal duplex
intermetalik
wytrącenia
faza sigma
faza chi
Opis:
This work deals with the problem of intermetallic phases in cast standard duplex steel ASTM A890 Gr 4A (generally known as 2205). The investigated steel was subjected to isothermal heat treatment in the range from 595 °C to 900 °C and in the duration from 15 minutes to 245 hours, and was also investigated in terms of anisothermal (natural) cooling after casting into the mould. The precipitation starts at grain boundaries with a consistent ferrite transformation. The work is focused on the precipitation of the sigma phase (σ) and the chi phase (χ). Examination of the microstructure was conducted using light and scanning electron microscopy. Their statistical analysis was carried out using the results of the investigations of precipitation processes in the microstructure, both within the grains and at the grain boundaries. To illustrate this impact, the surface area of precipitates was evaluated. The percentage of these intermetallic phases was calculated by measuring their area using a computer image analysis system. Based on their observations, a combined time-temperature transformation (TTT) diagram with continuous cooling transformation (CCT) curves was created.
Źródło:
Archives of Foundry Engineering; 2023, 23, 2; 29--34
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Casting of Combustion Engine Pistons Before and Now on the Example of FM Gorzyce
Autorzy:
Czerepak, Mateusz
Piątkowski, Jarosław
Powiązania:
https://bibliotekanauki.pl/articles/27314155.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
castings
silumins
pistons
permanent moulding
casting machines
surface treatment
odlewy
siluminy
tłoki
permanentne formowanie
maszyny odlewnicze
obróbka powierzchniowa
Opis:
The article discusses the most important changes in the construction of permanent mould casting machines, as well as the method of casting engine pistons and their construction on the example of Federal-Mogul (FM) Gorzyce. The system of automatic cooling of the presently used permanent mould casting machines coupled with robots which pour the liquid alloy ensures uniform crystallization of the pistons and optimal efficiency of the casting process. As a result of the necessity to improve the engine efficiency and thus reduce the fuel consumption and harmful substance emission, the construction of the pistons has changed as well. The piston castings, which are produced by gravity casting for metal moulds, have undergone a diametric transformation. Typical piston designs for gasoline and Diesel engines are shown together with the most important parts of the piston, the crown (combustion chamber) and the guide part (skirt). Depending on the type of engine, the present pistons characterize in differently shaped crown, a slimmed internal construction as well as component participation (cooling channels and ring inserts), and the piston skirts undergo surface treatment procedures.
Źródło:
Archives of Foundry Engineering; 2023, 23, 2; 58--65
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of temperature on the volume of gas emissions
Autorzy:
Żółkiewicz, Z.
Karwiński, A.
Powiązania:
https://bibliotekanauki.pl/articles/410907.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:
polistyren
odlewy
stopy żelaza
emisja gazów
evaporative pattern technology
casting
pattern
pattern made of foamed polystyrene
ferrous alloys
Opis:
In the full mould process, the polystyrene pattern which fills the mould cavity is subjected to pouring of this mould with liquid metal to the effect of high temperature (1600 0C) and passes from the solid state into liquid and gas. During this process some solid and gaseous products of the thermal destruction of the pattern are created. The kinetics of this process depends on the temperature of evaporation and, though to a smaller extent, on the pattern density, which, combined with the mould parameters, parameters of a ceramic coating, i.e. its thickness, permeability, and resistance to the effect of high temperatures, parameters of a granular material filling the mould and parameters of a technological process, including the technique of pouring and design. The mould cavity is filled with a pattern made of foamed polystyrene which on pouring of mould with liquid metal undergoes total destruction.
Źródło:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2012, 1, 2; 75-77
2084-5715
Pojawia się w:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:
Biblioteka Nauki
Artykuł

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